"""Test cases for traceback module"""
from test
.test_support
import run_unittest
, is_jython
class TracebackCases(unittest
.TestCase
):
# For now, a very minimal set of tests. I want to be sure that
# formatting of SyntaxErrors works based on changes for 2.1.
def get_exception_format(self
, func
, exc
):
return traceback
.format_exception_only(exc
, value
)
raise ValueError, "call did not raise exception"
def syntax_error_with_caret(self
):
compile("def fact(x):\n\treturn x!\n", "?", "exec")
def syntax_error_without_caret(self
):
# XXX why doesn't compile raise the same traceback?
import test
.badsyntax_nocaret
err
= self
.get_exception_format(self
.syntax_error_with_caret
,
self
.assert_(len(err
) == 4)
self
.assert_("^" in err
[2]) # third line has caret
self
.assert_(err
[1].strip() == "return x!")
# jython adds a caret in this case (why shouldn't it?)
err
= self
.get_exception_format(self
.syntax_error_without_caret
,
self
.assert_(len(err
) == 3)
self
.assert_(err
[1].strip() == "[x for x in x] = x")
def test_bug737473(self
):
import sys
, os
, tempfile
, time
testdir
= tempfile
.mkdtemp()
sys
.path
.insert(0, testdir
)
testfile
= os
.path
.join(testdir
, 'test_bug737473.py')
print >> open(testfile
, 'w'), """
if 'test_bug737473' in sys
.modules
:
del sys
.modules
['test_bug737473']
# this loads source code to linecache
traceback
.extract_tb(sys
.exc_traceback
)
# If this test runs too quickly, test_bug737473.py's mtime
# attribute will remain unchanged even if the file is rewritten.
# Consequently, the file would not reload. So, added a sleep()
# delay to assure that a new, distinct timestamp is written.
# Since WinME with FAT32 has multisecond resolution, more than
# three seconds are needed for this test to pass reliably :-(
print >> open(testfile
, 'w'), """
raise NotImplementedError"""
except NotImplementedError:
src
= traceback
.extract_tb(sys
.exc_traceback
)[-1][-1]
self
.failUnlessEqual(src
, 'raise NotImplementedError')
for f
in os
.listdir(testdir
):
os
.unlink(os
.path
.join(testdir
, f
))
run_unittest(TracebackCases
)
if __name__
== "__main__":